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(a) Illustration of Zn0.4Fe2.6O4/Mn-MOF core/shell nanoparticle (mAFIA). (b) TEM image (i) and energy dispersive X-ray spectroscopy (EDX) analysis of mAFIA (ii). T1 (c) and T2 (d) weighted images of mAFIA compared with conventional MRI contrast agents. (e) Schematic illustration of RITC-doped Fe3O4/TaOx core/shell nanoparticle for MRI/CT dual-modal imaging. Reproduced with permission from [78] and [80].
